Interspinous devices and methods of use
AssigneeSDGI Holdings, Inc.
InventorHai Trieu
Life of this patent
Estimating the term…
Abstract
Devices and methods for spacing the spinous processes of adjacent vertebral members. In one embodiment, the device includes first and second sections and an intermediate section that together form an interior section. An elastic member may be positioned within the interior section. The elastic member may have a variety of orientations, sizes, shapes, densities, modulus of elasticity, and other material properties depending upon the desired displacement between the first and second sections. The intermediate section in combination with the elastic member may be deformed during this movement and thereby exert a force to stabilize the vertebral members.
Claims26
An interspinous device positioned between first and second vertebral members, the device comprising:
- an upper section sized to contact the first vertebral member;
- a lower section sized to contact the second vertebral member;
- and
- an intermediate section that connects the upper and lower sections and forms at least one of a posterior and anterior wall, the intermediate section having multiple turns that form an overlapping configuration;
- an interior section formed between the upper section, the lower section, and the intermediate section, the interior section having an opening opposite from the intermediate section;
- and
- an elastic member positioned within the interior section;
- the intermediate section and elastic member being constructed to provide variable resistance to movement of the upper and lower sections.
An interspinous device positioned between first and second vertebral members, the device comprising:
- an upper section sized to contact the first vertebral member;
- a lower section sized to contact the second vertebral member;
- and
- an intermediate section that connects the upper and lower sections and forms one of a posterior and anterior wall, the intermediate section having multiple turns that form an overlapping configuration;
- and
- an elastic member positioned between the upper and lower sections;
- the intermediate section and elastic member being constructed to provide variable resistance to movement of the upper and lower sections.
An interspinous device positioned between first and second vertebral members, the device comprising:
- an upper section sized to contact the first vertebral member;
- a lower section sized to contact the second vertebral member;
- and
- an intermediate section that connects the upper and lower sections, the intermediate section connecting together at least one of anterior and posterior ends of the upper and lower sections;
- and
- an elastic member positioned within a space formed between the upper and lower sections, the elastic member having a shape with an area that increases from an upper surface towards a lower surface to provide variable resistance to inward movement of the upper and lower sections.
An interspinous device positioned between first and second vertebral members, the device comprising:
- an elongated member having an overlapping configuration with an intermediate section that spaces apart upper and lower sections;
- and
- first and second elastic members positioned between the upper and lower sections and proximate to the intermediate section, the elastic members sized to space apart the first and second endplates during movement of the vertebral members, wherein the first elastic member has a greater height than the second elastic member.
An interspinous device positioned between first and second vertebral members, the device comprising:
- an upper section sized to contact the first vertebral member;
- a lower section sized to contact the second vertebral member;
- a first intermediate section extending between anterior sections of the upper and lower sections;
- a second intermediate section extending between posterior sections of the upper and lower sections;
- an interior section formed between the first and second intermediate sections;
- and
- an elastic member positioned within the interior section;
- the first and second intermediate sections and the elastic member providing resistance to movement of the vertebral members.
Dependencies are inferred from the claim text.